The Faber Castell Twin Hole Sharpener 18 57 10 is made with all the quality and precision associated with German engineering. One hole is set up for graphite and gives a sharp point, the other sharpens to slightly thicker barrel and blunter point more suitable for colour pencils. This is the sharpener recommended by Faber for use on their Pitt Pastel pencils and the feedback from our customers confirms this to be true.